Fracture and impact properties of short discrete jute fibre-reinforced cementitious composites

Zhou, Xiangming; Ghaffar, Seyed Hamidreza; Dong, Wei; Oladiran, Olayinka; Fan, Mizi

doi:10.1016/j.matdes.2013.01.029

Cited by 131 publications

(45 citation statements)

References 29 publications

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“…Naaman and Gopalaratnam (1983) studied the effects of strain rate of loading including impact on the bending properties of steel fiber reinforced mortar using an instrumented drop-weight impact machine. Zhou et al (2013) conducted research on fracture and impact properties of short discrete jute fiber reinforced cementitious composites (JFRCC) with various matrix for developing low-cost natural fiber reinforced concretes and mortars. Wang et al (2016) performed experimental and numerical studies on the performance of seven high-performance fiber-reinforced cement-based composites against high velocity projectile impact.…”

Section: Introductionmentioning

confidence: 99%

Behavior of fiber reinforced mortar composites under impact load

Baloević

Radnić

Matešan

et al. 2018

Lat. Am. j. solids struct.

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This paper presents results of the experimental study on the behavior of plain and fiber reinforced cement mortars with different fibers under static and impact compressive load. Glass, polypropylene and carbon fibers were used in equal dosage by mass. The impact test was conducted using an impact tower with drop hammer, which represented the modification of the split-Hopkinson pressure bar system, with strain rates ranging from approximately 35 to 60 s -1 . The results of the static test and impact test with two different drop heights were compared and discussed. Among other, it has been concluded that the tested fiber reinforced mortars had no greater static and impact strength compared to the plain mortar. Only their ductility was increased at both static and impact failure. Strengths and ductility of all composite specimens were similar, i.e. without the effect of fiber type. With the increase of strain rate, compressive strength is increased and ductility is decreased for all tested specimens.

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Section: Introductionmentioning

confidence: 99%

Behavior of fiber reinforced mortar composites under impact load

Baloević

Radnić

Matešan

et al. 2018

Lat. Am. j. solids struct.

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“…It has been suggested that concrete panels can be judged as failed when a visible crack propagate throughout the panel, i.e. "at least one crack propagated throughout the panel reaching any two opposite edges of the square panel and throughout the depth of the panel as well" [3]. The impact test was carried on until both failure criteria for obtained results from the oscilloscopes and judgment by eye observation were satisfied.…”

Section: Methodsmentioning

confidence: 99%

“…In this study, absorbed energy by a HFRC panel at each impact blow can be characterised in terms of voltage from Eq. 3 employing drop weight apparatus, accelometer and oscilloscope for relative comparison purpose [3]. It should be noted here the absorbed energy here is not a physical quantity but is generated purely for relative comparison purpose.…”

Section: Data Analysis Methodsmentioning

confidence: 99%

Impact Properties of Hemp Fibre Reinforced Cementitious Composites

Zhou

Madanipour

Ghaffar

2016

KEM

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Abstract. The construction industry has seen an incredibly fast increase in utilizing natural fibres for making low-cost building materials to achieve sustainable construction. One of such applications is natural fibre-reinforced cementitious materials for either structural or non-structural purpose. Impact properties are engineering properties received increasing attentions from engineering community for structural materials. This research therefore studies impact resistance of hemp fibre reinforced cementitious composites at early ages. Hemp fibre with various lengths, 10 mm and 20 mm, are utilized to reinforce cementitious materials. Hemp fibre reinforced cementitious composite slabs were tested under repeating dropping mass till failure at the age of 7, 14 and 28 days. Cracking behaviour, impact resistance, absorbed impact energy and survived impact blows upon failure are qualitatively/quantitatively analysed. It has been found that 20 mm-long hemp fibre reinforcement leads to higher impact resistance, more absorbed impact energy and survived more impact blows upon failure. Cementitious composite slabs reinforced by 20 mm-long hemp fibres exhibit higher impact crack resistance ratio than those reinforced by 10 mm-long fibres. Longer fibres are more effective in inhibiting the growth of micro-cracks and blunting the propagation of micro-cracks before they join up to form macro cracks leading to ultimate failure.

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“…Its fracture properties have been investigated by both experimental studies, e.g., fracture properties of mortar [6,35], crack propagation in cementitious mortar [11], microcracking in cement mortar [25,26], crack deflection [31], and numerical analysis, such as Finite Element Modeling [20], nonextensive statistical modeling [27], and cohesive work approach [32]. Most of the current mortar cracking analyses are based on Classical Fracture Mechanics (CFM) originally proposed by Griffith [13].…”

Section: Introductionmentioning

confidence: 99%